I'm very glad you liked the game. 50 seconds is a great time : )
Also thank you for being understanding about the lack of juice. Creating your own game engine comes with the cost of having to plan quite hard for your approach on how everything is organized and implemented in a sensible way. I had most of the framework already completed, however I still had to implement many features during the jam which takes a lot of time away from creating the game itself.
Anyway thank you so much for playing my game and for giving great feedback : )